fix(branding): Caduceus in the WhatsApp bridge, installers and favicon too

Review finding on #109142: the JS bridge's DEFAULT_REPLY_PREFIX (the sender
actually used at runtime), scripts/install.sh, setup-hermes.sh and the site
favicon still carried the old glyph. Python and JS defaults now agree.

scripts/install.sh

@@ -218,7 +218,7 @@ print_banner() {
     echo ""
     echo -e "${MAGENTA}${BOLD}"
     echo "┌─────────────────────────────────────────────────────────┐"
-    echo "│             ⚕ Hermes Agent Installer                    │"
+    echo "│             ☤ Hermes Agent Installer                    │"
     echo "├─────────────────────────────────────────────────────────┤"
     echo "│  An open source AI agent by Nous Research.              │"
     echo "└─────────────────────────────────────────────────────────┘"

scripts/whatsapp-bridge/bridge.js

@@ -115,7 +115,7 @@ const PAIR_JSON = args.includes('--pair-json');
 const WHATSAPP_MODE = getArg('mode', process.env.WHATSAPP_MODE || 'self-chat'); // "bot" or "self-chat"
 const WHATSAPP_DM_POLICY = String(process.env.WHATSAPP_DM_POLICY || 'open').trim().toLowerCase();
 const ALLOWED_USERS = parseAllowedUsers(process.env.WHATSAPP_ALLOWED_USERS || '');
-const DEFAULT_REPLY_PREFIX = '⚕ *Hermes Agent*\n────────────\n';
+const DEFAULT_REPLY_PREFIX = '☤ *Hermes Agent*\n────────────\n';
 const REPLY_PREFIX = process.env.WHATSAPP_REPLY_PREFIX === undefined
   ? DEFAULT_REPLY_PREFIX
   : process.env.WHATSAPP_REPLY_PREFIX.replace(/\\n/g, '\n');

setup-hermes.sh

@@ -56,7 +56,7 @@ get_command_link_display_dir() {
 }
 
 echo ""
-echo -e "${CYAN}⚕ Hermes Agent Setup${NC}"
+echo -e "${CYAN}☤ Hermes Agent Setup${NC}"
 echo ""
 
 # ============================================================================

website/static/img/favicon.svg

@@ -1,3 +1,3 @@
 <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100">
-  <text y=".9em" font-size="90">⚕</text>
+  <text y=".9em" font-size="90">☤</text>
 </svg>